Fix order sensitive and nondeterministic unit tests

storage/graph.go

@@ -2,6 +2,7 @@ package storage
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"local/dndex/config"
 	"local/dndex/storage/driver"
@@ -34,6 +35,16 @@ func (g Graph) Search(ctx context.Context, namespace string, nameContains string
 	return g.find(ctx, namespace, filter)
 }
 
+func (g Graph) ListCaseInsensitive(ctx context.Context, namespace string, from ...string) ([]entity.One, error) {
+	if len(from) == 0 {
+		return g.List(ctx, namespace)
+	}
+	pattern := strings.Join(from, "|")
+	pattern = "^(?i)(" + pattern + ")"
+	filter := operator.Regex{Key: entity.Name, Value: pattern}
+	return g.find(ctx, namespace, filter)
+}
+
 func (g Graph) List(ctx context.Context, namespace string, from ...string) ([]entity.One, error) {
 	filter := operator.NewFilterIn(entity.Name, from)
 	return g.find(ctx, namespace, filter)
@@ -60,6 +71,11 @@ func (g Graph) gatherOnes(ctx context.Context, ch <-chan bson.Raw) ([]entity.One
 }
 
 func (g Graph) Insert(ctx context.Context, namespace string, one entity.One) error {
+	if ones, err := g.ListCaseInsensitive(ctx, namespace, one.Name); err != nil {
+		return err
+	} else if len(ones) > 0 {
+		return errors.New("collision on primary key when case insensitive")
+	}
 	return g.driver.Insert(ctx, namespace, one)
 }